Spring motor



Oct. 21 1924. 7 1,512,136

E. c. RECHEL SPRING MOTOR Filed Sept. '1, 1922 Patented Get. 21, 1924.

UNITED STATES EDWIN C. RECI-IEL, OF KEENE, NEW HAMPSHIRE.

SPRING Application filed September To all whom it may concern:

Be it known that I, EDWIN C. Rncnnn, a citizen of the United Statesresiding at Keene, in the county of Gheshire, State of New Hampshire,have invented certain new and useful Improvements in Spring Motors, ofwhich the following is a description, ref 'erence being had to theaccompanying drawing and tothe figures of reference marked thereon.

The invention relates to improvements in spring motors.

The present invention relates to improvements in certain features ofconstruction disclosed in the patent granted to H. T. Kingsbury, June12, 1917, for a spring motor for mechanical toys and the like.

The primary object of my invention is to provide a simple, cheap andeffective winding shaft adapted to be applied to spring motors ofdifferent structures and having certain details of construction andcombina tion of parts hereinafter more fully described.

In the accompanying drawings:-

Figure 1 is a top plan view of my improved motor;

Fig. 2 is a transverse sectional view taken on the line 2-2 of Fig. 1;

Fig. 3 is a rear plan view of the cover plate of the gear housingshowing the pawl attached to the winding shaft;

Fig. 4 is a transverse sectional view of Fig. 3 showing one of theratchet teeth engaglng the pawl;

Fig. 5 is a perspective view of the winding shaft and pawl in separatedrelation; and

Fig. 6 is a plan view of the blank from which the winding shaft isformed.

My invention pertains more particularly to spring motors for toys inwhich the parts are made of sheet metal but the same could be used inmany places where a light motor is desired and, therefore, I do notdesire to limit myself to the application of the motor as it could beused in many places.

Referring now to the drawings, 1 represents the casing which as shown isof circular form and has a central. depressed portion 2 forming the fiatshoulder or flange 3 upon which the flat face of the crown gear 4 rests.The crown gear 4 are provided on its flat face at intervals withinwardly extending lugs 5 which lie close to the straight MOTOR.

1, 1922. Serial No. 585,661.

walls of the central depressed portion and serve as guides for the crowngear, as will be readily understood.

The casing 1 at oppositely disposed sides are provided with upwardlyextending ears 6 and 7 having openings in which is arranged the shaft 8rigidly carrying the pinion gear 9 meshing with the teeth of the crowngear 4 and thereby the shaft is rotated, as will be later described.

The casing is closed by the cover plate 10 and is of a crown or saucerform, having on opposite sides the cut-away portions 11 and 12 to allowfor the free rotation of the shaft 8. The-said cover plate is providedaround its periphery with the notches 13 into which extends the ears 14carried by the casing and the same are turned over and clamp the coverplate to the casing.

The cover plate 10 is provided with an opening 14- through which passesthe wind ing stem 15, and the said stem also passes through an opening16 in the crown gear 4c and through the opening 17 in the casing 1.whereby the same is rotatably supported. The winding stem i formed of asheet of metal of the form shown in Fig. 6 of the drawings. In formingthe winding stem, the handle portion 18 has ears 19 which are bentlaterally, as shown in Fig. 5, the two portions 20 and 21 forming theshaft or stem proper is then bent laterally in the opposite direction.The pawl 22 is of the form shown in Fig. 5, havingthe winged portions 23and 24B and the two parallel slots 25 and 26 through which the portions20 and 21 of the stem pass.

The key 27 which has the laterally turned end portions 28 and 29 is thenplaced between the portions 20 and 21. The said. por tions 20 and 21 arethen shaped in the form of a shaft with the two oppositely arrangedslots 30 and 31. It is understood that the stem is first passed throughthe cover plate 8 before the pawl is placed in position. and after theshaft like member formed, the winding stem is rotatably supported by thecover plate and removable there-with. By this construction, it will beseen that the laterally turned ends 28 and 29 of the key 27 engages thepawl and prevents any twisting thereof.

When assembled, a coil spring 32 has one end so bent as to enter one ofthe slots in the stem by sliding it through the open 17 S Win ing .stem

hollow end and the opposite end of the spring is attached to one of thelugs 5. The inner face of the cover plate is provided with inwardly bentportions 33 which form teeth to engage the winds of the pawl and allowthe shaft to. bewonnd in one. direction but prevent the backwardmovement of the shaft or stem. The shape of these teeth is shown inFigs. 3 and 4., as hereinloefore stated, to allow for'the ready rotationof the shaft in one direction.

7 In theassenihled position of all the parts, as shown in Fig. 2, thewinding stemis readily rotated and hy h olding the shaft 8 the springiswound upon the-stem. gIhave not shownthe invention applied as it eouldbeu e Wh re er so p ati d yn ight,mot

p s bl a e ctofor t t di is o vi u tha .l iino hang .i t details ofoonstruot on and the arrangew n I fth parts may vh mad wi ou parting rei'th sp r of th v n i n as g rth in h epn ml cl im ,Having thus desgrihedthe invention, what I el aini as,new isz ,1. A winding stern for aspring motor li ad fr m anlinteg l sheet m a bla k formed with V ahandleportionand two laterally disposed portions bent laterally intoopposition to forrn a round shaft.

2. The combination of a winding stein formed fronna single hla nkvtoprovide a handle portion anda SlltfhPOllilOIl, a pawl suitablyperforated to reeeive said shaft portion therethrough, said shaftportion being-suitably deformed to le el; sai pawl 33. The combinationof a w'indin stem 1 a l. 7 he; formed from alslngle blank to provide ahandle portion and laterally bent opposed shaft portions, a pawl:constructed and arr ng d-l e ei Sa shaf lpert on and to he looked 1nposition by the deformatlon of said shaftportio nsm form the shaft.

4. A sheet metal w ndlng stem made from a blank having a portionsuitably bent to handle portion and a shaft portion passing through theaperture in the cover plate, a

pawl loeated on said shaft portion on the opposite sideof said cover andlocked there'- on by the deformation of said shaft whereby saidWindingstem is held from movement in either direction relative to saidoover plateloysaid handle andhy said pawl.

6 A W nd ng vs n made from a blank form d with ahanclle portion and.twojla er l y extending fia stein p rti ns, .a B L- throughwhielrtheteni portions pass and are held aga nst rotation, said st Inportion b eing'shaped to form a rouiifd shaftand having slots wher ebyawindin'g'spring may be secured thereto.-

7. A winding stem made from a xblank formed with ahandle portion andlaterally extending fiat stem portiorna pawl'having two slots thronghWhichthe stern po rtions pass, a key between the stern'portion forholding the pawl against twisting, and'the stem portion being thenshaped toiloe k the key in position and to ,forinla round'sliaft with aslot for securing a springthereto.

8. A winding istenrfor the purpose deseriloed, made froinaqlolank"formed with a handle portion intermediate its end, and'two flatstem portion bent laterally, a pawlvhaving twoslots through which" thestern portions pass, akey between. the stem'ip'ortions and having broadends engaging th'eiipawl and holding it against twisting, the stem portons be ng then shaped to loek ith e .key in position and to forrn around shaft with a EDWIN o. REGHEL.

